From: Michael Grzeschik <m.grzeschik@xxxxxxxxxxxxxx> Add support according the SMARC Spec 1.1 [1] and provided schematics. Due to the lack of hardware the interface can't be tested right now. [1] https://sget.org/standards/smarc Signed-off-by: Michael Grzeschik <m.grzeschik@xxxxxxxxxxxxxx> Signed-off-by: Marco Felsch <m.felsch@xxxxxxxxxxxxxx> --- arch/arm/boot/dts/imx6qdl-kontron-samx6i.dtsi | 21 +++++++++++++++++++ 1 file changed, 21 insertions(+) diff --git a/arch/arm/boot/dts/imx6qdl-kontron-samx6i.dtsi b/arch/arm/boot/dts/imx6qdl-kontron-samx6i.dtsi index e546d46365f5..a92f6e31fd71 100644 --- a/arch/arm/boot/dts/imx6qdl-kontron-samx6i.dtsi +++ b/arch/arm/boot/dts/imx6qdl-kontron-samx6i.dtsi @@ -113,6 +113,14 @@ pinctrl-0 = <&pinctrl_flexcan2>; }; +/* SPI0 */ +&ecspi4 { + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_ecspi4>; + cs-gpios = <&gpio3 24 GPIO_ACTIVE_HIGH>, + <&gpio3 29 GPIO_ACTIVE_HIGH>; +}; + /* GBE */ &fec { pinctrl-names = "default"; @@ -244,6 +252,19 @@ }; &iomuxc { + pinctrl_ecspi4: ecspi4grp { + fsl,pins = < + MX6QDL_PAD_EIM_D21__ECSPI4_SCLK 0x100b1 + MX6QDL_PAD_EIM_D28__ECSPI4_MOSI 0x100b1 + MX6QDL_PAD_EIM_D22__ECSPI4_MISO 0x100b1 + + /* SPI_IMX_CS2# - connected to internal flash */ + MX6QDL_PAD_EIM_D24__GPIO3_IO24 0x1b0b0 + /* SPI_IMX_CS0# - connected to SMARC SPI0_CS0# */ + MX6QDL_PAD_EIM_D29__GPIO3_IO29 0x1b0b0 + >; + }; + pinctrl_flexcan1: flexcan1grp { fsl,pins = < MX6QDL_PAD_GPIO_7__FLEXCAN1_TX 0x1b0b0 -- 2.20.1
